1、 ETSI TS 1Universal Mobile TelWireless LAfor truste(3GPP TS 24.2TECHNICAL SPECIFICATION124 244 V13.2.0 (2016elecommunications System (LTE; L N control plane protocol ted WLAN access to EPC; Stage 3 .244 version 13.2.0 Release 1316-04) (UMTS); 13) ETSI ETSI TS 124 244 V13.2.0 (2016-04)13GPP TS 24.244
2、 version 13.2.0 Release 13Reference RTS/TSGC-0124244vd20 Keywords LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06)
3、 N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without th
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8、f ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 124 244 V13.2.0 (2016-04)23GPP TS
9、 24.244 version 13.2.0 Release 13Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI S
10、R 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no inv
11、estigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Spec
12、ification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI delivera
13、bles. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpre
14、ted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 124 244 V13.2.0 (2016-04)33GPP TS 24.244 version 13.2.0 Release 13Contents Intellect
15、ual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g32 References 7g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 General . 8g34.1 Overview 8g34.2 Protocol stack . 8g34.2.1 General 8g34.2.2 UDP port numbers for WLCP. 9g34.2.2.1
16、General 9g34.2.2.2 UE procedure 9g34.2.2.3 TWAG procedure 9g34.2.3 IP addresses of WLCP message 9g34.2.3.1 General 9g34.2.3.2 UE procedure 9g34.2.3.3 TWAG procedure 10g34.2.4 DTLS usage 10g34.3 WLCP layer states 10g34.3.1 General 10g34.3.2 WLCP layer states in the UE 10g34.3.2.1 PDN CONNECTIVITY NOT
17、 ESTABLISHED . 10g34.3.2.2 PDN CONNECTIVITY ESTABLISHED 10g34.3.2.3 PROCEDURE TRANSACTION INACTIVE 11g34.3.2.4 PROCEDURE TRANSACTION PENDING . 11g34.3.3 WLCP layer states in the TWAG 11g34.3.3.1 PDN CONNECTIVITY NOT ESTABLISHED . 11g34.3.3.2 PDN CONNECTIVITY PENDING 11g34.3.3.3 PDN CONNECTIVITY ESTA
18、BLISHED 11g34.3.3.4 PDN DISCONNECT PENDING 11g34.3.3.5 PROCEDURE TRANSACTION INACTIVE 12g34.3.3.6 PROCEDURE TRANSACTION PENDING . 12g34.4 IP address allocation . 12g35 Wireless LAN control plane protocol Procedures 13g35.1 General . 13g35.1.1 Overview 13g35.1.2 Services provided by lower layers 13g3
19、5.1.3 Principles of address handling for WLCP procedures 13g35.1.4 Abnormal cases in the UE 13g35.1.5 Abnormal cases in the TWAG 13g35.1.6 Handling of APN based congestion control 14g35.2 PDN connectivity establishment procedure . 14g35.2.1 General 14g35.2.2 PDN connectivity establishment procedure
20、initiation . 14g35.2.3 PDN connectivity establishment procedure accepted by the TWAG . 15g35.2.3.1 PDN connectivity establishment accepted by the UE . 16g35.2.3.2 PDN connectivity establishment not accepted by the UE . 16g35.2.4 PDN connectivity procedure not accepted by the TWAG 16g3ETSI ETSI TS 12
21、4 244 V13.2.0 (2016-04)43GPP TS 24.244 version 13.2.0 Release 135.2.5 Abnormal cases in the UE 18g35.2.6 Abnormal cases on the network side 18g35.3 TWAG initiated PDN disconnection procedure . 19g35.3.1 General 19g35.3.2 Procedure description . 19g35.3.3 Abnormal cases in the UE 19g35.3.4 Abnormal c
22、ases in the TWAG 20g35.4 UE requested PDN disconnection procedure . 20g35.4.1 General 20g35.4.2 Procedure description . 20g35.4.3 Abnormal cases in the UE 21g35.4.4 Abnormal cases in the TWAG 21g35.5 STATUS message 21g35.6 TWAG initiated PDN connectivity modification procedure 22g35.6.1 General 22g3
23、5.6.2 Procedure description . 22g35.6.3 PDN connectivity modification procedure accepted by the UE . 22g35.6.4 PDN connectivity modification procedure not accepted by the UE . 22g35.6.5 Abnormal cases in the UE 23g35.6.6 Abnormal cases in the TWAG 23g35.7 UE requested PDN connectivity modification p
24、rocedure. 23g35.7.1 General 23g35.7.2 Procedure description . 23g35.7.3 PDN connectivity modification procedure accepted by the network 24g35.7.4 PDN connectivity modification procedure not accepted by the network 24g35.7.5 Abnormal cases in the UE 24g35.7.6 Abnormal cases in the TWAG 25g36 Handling
25、 of unknown, unforeseen, and erroneous protocol data . 25g36.1 General . 25g36.2 Message too short . 25g36.3 Unknown or unforeseen procedure transaction identity or PDN connection ID 25g36.3.1 Procedure transaction identity. 25g36.3.2 PDN connection ID . 26g36.4 Unknown or unforeseen message type .
26、26g36.5 Non-semantical mandatory information element errors . 26g36.5.1 Common procedures . 26g36.5.2 PDN connection management. 27g36.6 Unknown and unforeseen IEs in the non-imperative message part 27g36.6.1 IEIs unknown in the message . 27g36.6.2 Out of sequence IEs 27g36.6.3 Repeated IEs . 27g36.
27、7 Non-imperative message part errors . 28g36.7.1 General 28g36.7.2 Syntactically incorrect optional IEs 28g36.7.3 Conditional IE errors 28g36.8 Messages with semantically incorrect contents 28g37 Message functional definitions and contents 28g37.1 PDN connectivity request . 28g37.1.1 Message definit
28、ion 28g37.1.2 Access point name 29g37.1.3 Protocol configuration options 29g37.1.4 NBIFOM container . 29g37.2 PDN connectivity accept 29g37.2.1 Message definition 29g37.2.2 Protocol configuration options 30g37.2.3 Cause 30g37.2.4 NBIFOM container . 30g37.3 PDN connectivity reject . 30g37.3.1 Message
29、 definition 30g37.3.2 Protocol configuration options 31g3ETSI ETSI TS 124 244 V13.2.0 (2016-04)53GPP TS 24.244 version 13.2.0 Release 137.3.3 Tw1 value . 31g37.4 PDN disconnect request . 31g37.4.1 Message definition 31g37.4.2 Protocol configuration options 31g37.5 PDN disconnect accept . 31g37.5.1 M
30、essage definition 31g37.5.2 Protocol configuration options 32g37.6 PDN disconnect reject 32g37.6.1 Message definition 32g37.6.2 Protocol configuration options 32g37.7 PDN connectivity complete 32g37.7.1 Message definition 32g37.8 Status message 33g37.8.1 Message definition 33g37.9 PDN modification r
31、equest 33g37.9.1 Message definition 33g37.9.2 Protocol configuration options 34g37.9.3 NBIFOM container . 34g37.10 PDN modification accept . 34g37.10.1 Message definition 34g37.10.2 Protocol configuration options 34g37.10.3 NBIFOM container . 34g37.11 PDN modification reject . 34g37.11.1 Message def
32、inition 34g37.11.2 Protocol configuration options 35g37.11.3 NBIFOM container . 35g37.12 PDN modification indication 35g37.12.1 Message definition 35g37.12.2 Protocol configuration options 35g37.12.3 NBIFOM container . 36g38 General message format and information elements coding 36g38.1 General . 36
33、g38.2 Message type 36g38.3 Procedure transaction identity 37g38.4 Request type . 37g38.5 PDN type 37g38.6 Access point name 37g38.7 Protocol configuration options . 38g38.8 PDN address . 38g38.9 PDN connection ID 38g38.10 User plane connection ID . 38g38.11 Cause 39g38.12 GPRS timer 3 . 39g38.13 NBI
34、FOM container. 39g39 List of system parameters . 39g39.1 Timers 39g3Annex A (Informative): IANA UDP port registration form . 41g3Annex B (informative): Change history . 43g3History 44g3ETSI ETSI TS 124 244 V13.2.0 (2016-04)63GPP TS 24.244 version 13.2.0 Release 13Foreword This Technical Specificatio
35、n has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
36、identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all c
37、hanges of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 124 244 V13.2.0 (2016-04)73GPP TS 24.244 version 13.2.0 Release 131 Scope The present document specifies the
38、procedures of the Wireless LAN control plane protocol (WLCP) for trusted WLAN access to EPC which is used between User Equipment (UE) and Trusted WLAN Access Gateway (TWAG) for multi-connection mode as specified in 3GPP TS 23.402 2. This document also defines the message format, information elements
39、 coding, error handling and system parameters applied by the WLCP protocol. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identified by date of publication, edition numbe
40、r, version number, etc.) or non-specific. - For a specific reference, subsequent revisions do not apply. - For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest vers
41、ion of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 23.402: “Architecture Enhancements for non-3GPP accesses“. 3 3GPP TS 24.302: “Access to the 3GPP Evolved Packet Core (EPC) via non-3GPP access networks; Stage 3“. 4 3GP
42、P TS 24.008: “Mobile radio interface Layer 3 specification; Core network protocols; Stage 3“. 5 3GPP TS 24.301: “Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3“. 6 IEEE Std 802-2014: “IEEE Standard for Local and Metropolitan Area Networks: Overview and Architecture“, 30th
43、 June 2014. 7 3GPP TS 24.007: “Mobile radio interface signalling layer 3; General aspects“. 8 IETF RFC 768: “User Datagram Protocol“ 9 3GPP TS 33.402: “3GPP System Architecture Evolution (SAE); Security aspects of non-3GPP accesses“. 10 3GPP TS 24.161: “Network-Based IP Flow Mobility (NBIFOM); Stage
44、 3“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 1. ETSI
45、ETSI TS 124 244 V13.2.0 (2016-04)83GPP TS 24.244 version 13.2.0 Release 133.2 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 1 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same
46、abbreviation, if any, in 3GPP TR 21.905 1. APN Access Point Name DTLS Datagram Transport Layer Security EAP Extensible Authentication ProtocolEPC Evolved Packet Core Network ID Identifier IE Information Element IEI Information Element Identifier LSB Least Significant Bit MAC Media Access Control MSB
47、 Most Significant Bit NBIFOM Network-based IP flow mobility PCO Protocol Configuration Options PDN Packet Data Network PDN GW Packet Data Network Gateway PTI Procedure Transaction Identity TWAG Trusted WLAN Access Gateway UE User EquipmentWLAN Wireless Local Area Network WLCP Wireless LAN control pl
48、ane protocol 4 General 4.1 Overview WLCP is used between user equipment (UE) and trusted wLAN access gateway (TWAG) for multi-connection mode as specified in 3GPP TS 23.402 2. The WLCP comprises procedures for: - establishment of PDN connections including initial request and handover from a 3GPP acc
49、ess; - requesting the release of a PDN connection by the UE or notifying the UE of the release of a PDN connection; - transport of parameters related to PDN connections, such as APN, PDN type, PCO, handover indication, user-plane MAC address of the TWAG etc.; and - IP address allocation. Generally, WLCP procedures described in the clause 5 can be performed only after the UE has successfully completed the following steps: - Authentication and negotiation of the multi-connection mode for the trusted WLAN access as specified in 3GPP TS 24.302 3;
